Transcriptomics

Dataset Information

35

Sediment Extract Series River Rhine


ABSTRACT: The zebrafish embryo has repeatedly proved to be a useful model for the analysis of effects by environmental toxicants. This proof-of-concept study was performed to investigate if an approach combining mechanism-specific bioassays with microarray techniques can obtain more in-depth insights into the ecotoxicity of complex pollutant mixtures as present, e.g., in sediment extracts. For this end, altered gene expression was compared to data from established bioassays as well as to results from chemical analysis. Microarray analysis revealed several classes of significantly regulated genes which could to a considerably extend be related to the hazard potential. Results indicate that potential classes of contaminants can be assigned to sediment extracts by both classical biomarker genes and corresponding expression profile analyses of known substances. However, it is difficult to distinguish between specific responses and more universal detoxification of the organism. Overall design: Microarray analysis were performed with early life stages of zebrafish exposed to 2 sediment extracts from the Upper part of the River Rhine, Germany. The expression profile as then compared to the expression pattern of model toxicants, such as, 4-chloroaniline, Cadmium, DDT, TCDD, and Valproic acid (Gene Expression Omnibus Series GSE9357). Additionally, combining mechanism-specific bioassays as well as chemical analysis of the sediments to the gene expression data has contributed to a more comprehensive view on the hazard potential of the sediments.

INSTRUMENT(S): Forschungszentrum Karlsruhe Danio rerio microarray

ORGANISM(S): Danio rerio  

SUBMITTER: Jens C Otte 

PROVIDER: GSE30594 | GEO |

SECONDARY ACCESSION(S): PRJNA144555

REPOSITORIES: GEO

Similar Datasets

2012-12-31 | E-GEOD-30594 | ArrayExpress
2012-12-31 | E-GEOD-31400 | ArrayExpress
2012-12-21 | E-GEOD-41463 | ArrayExpress
2011-01-01 | E-TABM-1146 | ArrayExpress
2013-08-24 | E-GEOD-50163 | ArrayExpress
2008-06-25 | GSE11837 | GEO
2008-06-25 | E-GEOD-11837 | ArrayExpress
2012-03-31 | E-MTAB-632 | ArrayExpress
| GSE90875 | GEO
2015-01-30 | E-GEOD-65430 | ArrayExpress